A turned monster draw

Background: Villain (MP3) is 14/11/9.0 @ 90 hands.

Full Tilt No-Limit Hold'em, $0.10 BB (9 handed) - Full-Tilt Converter Tool from http://www.flopturnriver.com

UTG ($17.65)
UTG+1 ($15.69)
MP1 ($10.15)
MP2 ($16.04)
MP3 ($20.85)
CO ($5.38)
Hero (Button) ($49.10)
SB ($11.08)
BB ($16.89)

Preflop: Hero is Button with 7s, 5s
2 folds, MP1 bets $0.35, 1 fold, MP3 calls $0.35, 1 fold, Hero calls $0.35, 1 fold, BB calls $0.25
With the call behind, and a suited one-gappers, I'm going to roll the dice. Particularly, I have $49.10 in my stack and a $.35 hit is not going to be felt. Additionally, all callers / raisers have sizable stacks for the stakes (Deep stack tables), so if I do hit, it will likely be hidden and I will get paid. I can get away from this hand very easily if I miss, and, as an added bonus, the BB comes along for the ride.

Flop: ($1.45) 8s, Jh, Qc (4 players)
BB checks, MP1 checks, MP3 checks, Hero checks
Something is weird, but at this point, I have nothing; no draws, no nothing other than a few backdoor draws.

Turn: ($1.45) 6s (4 players)
BB checks, MP1 checks, MP3 bets $1.45, Hero calls $1.45, 2 folds
Wow! That certainly changes *EVERYTHING*. I turn a straight flush draw with the single-best card in the entire deck. Plus, MP3 is betting. If he's betting, he has to have SOMETHING good here. He's not a donkey; okay - well maybe he is a donkey. But he has to have something good. I call with the implied odds that I will get a lot more if I hit my hidden straight or flush draw on the river.

River: ($4.35) 4c (2 players)
MP3 bets $19.05 (All-In), Hero calls $19.05
Payoff! I hit my straight. Now, how to get all the money in? Hmm... No need! MP3 took care of all of this for me. I'm not quite sure why he felt he had to commit his whole stack with only $4.35 in the pot. Perhaps he wanted it to look like a steal by overbetting the pot? He was certainly not a donkey, but he did go on to overvalue every overpair, so from that aspect, perhaps he was donkish. It is still beyond me how this guy puts his whole stack in from a small pot.

For those playing at home: here's what NOT to do when you have NO IDEA WHERE YOU ARE IN THE HAND. REMEMBER: The rule is to put your opponent on a hand prior to your bet. Granted, it's tough to put me on a hand here, but why commit your entire stack without knowing where your opponent is in the hand?

Total pot: $42.45 | Rake: $2

Results:
Hero had 7s, 5s (straight, eight high).
MP3 had 6h, 6c (three of a kind, sixes).
Outcome: Hero won $40.45